Fire-tube boil

The earliest form of fire-tube boiler was Richard Trevithick's "high-pressure" Cornish boiler. This is a long horizontal cylinder with a single large flue containing the fire. The fire itself was on an iron grating placed across this flue, with a shallow

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Gas Combi Coal Fired Boiler Ta

1. Adopted popular inernal combustion three-return full wet back boiler, boiler radiation heating surface is whole corrugated furnace increase heated area and satisfied self expansion of hot furnace. 2. Adopted screw smoke tube, enforce the heating effici

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